Narrow Near-Threshold Resonance in e+-He+ Scattering

被引：1
|
作者：
Liu Min-Min [1 ,2 ,3 ]
Han Hui-Li [1 ]
Gu Si-Hong [1 ]
Shi Ting-Yun [1 ]
机构：
[1] Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
[2] Wuhan Inst Technol, Sch Sci, Wuhan 430073, Peoples R China
[3] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2012年 / 29卷 / 01期
基金：
中国国家自然科学基金;
关键词：
POSITRON SCATTERING; STATES; N=3;
D O I：
10.1088/0256-307X/29/1/013101
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
An independent alternative calculation is performed for narrow near-threshold resonances in the e(+)-He+ system using the stabilization method in the framework of hyperspherical coordinates (HSSM). A narrow resonance at E-r = -0.249995 with width Gamma = 1.9 x 10(-5), associated with the He2+-Ps (n = 1) threshold is confirmed. The resonances around the energies -0.365 and -0.195, predicted by Bhatia and Drachman [Phys. Rev. A 42 (1990) 5117] and confirmed by Ho [Phys. Rev. A 53 (1996) 3165], do not appear in our calculations.
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页数：3
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